Clear-Glide is a high-tenacity polyester filament bobbin wound on a plastic flange spool. Designed for today‰۪s home sewing (drop-in) bobbin cases
A box of 100 bulk clear plastic-sided pre-wound bobbins.
Fiber Type: 100% Cotton - Egyptian Long-Staple Mercerized
Fiber Size: 50/2
Fiber Yardage: 75yd per Prewound Class L Bobbin

Fil-tec Clear-Quilt Prewound bobbin thread is washable and colorfast. It is also
available in popular colors so you can spend time quilting rather than winding bobbins. Uniform tension control for better stitch formation.
These prewounds offer significantly more stitches than machine wound bobbins and work great with thread sensors. Perfect for productivity-minded sewers.~